code: def auto_tpu_strategy(self):
      return tfc.run(
          entry_point=os.path.join(
              self.test_data_path, "mnist_example_using_fit.ipynb"
          ),
          requirements_txt=os.path.join(
              self.test_data_path, "requirements_tpu_strategy.txt"
          ),
          chief_config=tfc.COMMON_MACHINE_CONFIGS["CPU"],
          worker_count=1,
          worker_config=tfc.COMMON_MACHINE_CONFIGS["TPU"],
          docker_config=tfc.DockerConfig(
              parent_image="tensorflow/tensorflow:2.1.0"
          ),
          job_labels={
              "job": "auto_tpu_strategy",
              "team": "on_notebook_tests",
          },
      )
  
file_path: cloud/src/python/tensorflow_cloud/core/tests/integration/run_on_notebook_test.py
imports: import os
  import mock
  import tensorflow
  import tensorflow_cloud
  from tensorflow_cloud.utils import google_api_client
label_desc: Use image node_id 4 for calling the RunOnNotebookTest obj's underlying member method code with example usage: obj.auto_tpu_strategy() and returns: tfc